What could cause a chirping serpentine belt after replacement on my Camry?

[Avery_W]

I just replaced the serpentine belt on my 2012 Camry and now there’s a faint chirping sound coming from the front of the engine at idle. I’m worried I might have misaligned one of the pulleys or overtightened it, but the tensioner seemed to settle in the correct range.

[James.A]

I replaced mine on a 2012 Camry and at idle I could barely hear a thin chirp. The belt looked snug and the tensioner sat in the normal range, and after a few miles the noise faded as the belt settled in.

[SofiaL]

I started worrying about the tensioner bearing or an idle pulley. I spun the pulleys by hand with the belt off and there was a tiny, almost imperceptible wobble on one of them—but nothing dramatic.

[ScottVW]

Could it be that the chirp isn’t the belt at all?

[CharlesL]

I also drifted into thinking maybe a burr on a pulley or edge along the belt path was catching as it warmed up. I checked a few edges and didn’t see much, but the noise hung around for a bit anyway.